Simplify Coexistence and Interference Testing for GNSS Receivers

Today, GNSS receivers are used in many applications, such as car navigation systems, drones and aviation instrument approach procedures. Therefore, these devices need to provide highly accurate position fixes and high availability even under adverse conditions. Multiple other services, such as LTE, also make use of frequencies close to the GNSS bands. Receivers have to be designed in a way that allows safe coexistence of these signals to prevent performance degradation. A receiver must also be resilient against unintentional interference (i.e. out-of-band transmissions from amateur radios) as well as intentional interference (i.e. jamming or spoofing). To prove the robustness of GNSS receivers against interference, they have to be tested against all kinds of interfering signals for all available GNSS constellations and frequency bands. To obtain meaningful and repeatable results, tests are best performed with a GNSS simulator in a controlled lab environment.